Java Development

[jeyaprakash]

I developing an application with Folderlistner api.. i can get all mails from my store i got 2 problems in my application

I cant quit folderlistner. am using

removelistner method while calling exit (system.exit) after tat my application processing all emails for example my application deleting all emails from my store. how to remove folderlistner from store 

 when restart my application it processing emails once again i mean 2 listners working in same time not only 2

 For every restart another one listner shoud added 

 how can i solve this problems? 

 to adding listner 

mystore= session.getStore(); 
mystore.addFolderListener(this);

to removeing llistner while calling system.exit(0) 

mystore.removeFolderListener(this);
mystore=null;

 

[yosoh]

take a look at this article which exactly does what you are looking for:

http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800451/800783/How_To_...

regards,

yosoh 

[jeyaprakash]

but my application don have alternate entry points its just a background application with simple ui when user click application icon my application comes foreground how can i get singleten instence

[yosoh · Accepted solution]

To create a singleton instance you dont need an alternate entry point. I was referrring you to this part of the code and not the complete application. Just implement the following part in your application and no need to do alternate entry point settings.

private FolderListenerGUI folderListenerGUI = null;

  //Long value: com.samples.folderListener

  public static final long RTSID_MY_APP = 0x7451402f595f81a5L;



  public FolderListenerApp() 

  {

    try

    {

      //Get the store from the default instance.

      Store store = Session.getDefaultInstance().getStore();

      //Add the folder listener to the store.

      store.addFolderListener(this);

    }

    catch (Exception e)

    {

      System.out.println(e.toString());

    }

  }



  //Returns an instance of the running FolderListenerApp.

  public static FolderListenerApp waitForSingleton()

  {

    //Ensure this is a singleton instance.



    //Open the RuntimeStore.

    RuntimeStore store = RuntimeStore.getRuntimeStore();

    //Obtain the reference of FolderListenerApp.

    Object obj = store.get(RTSID_MY_APP);



    //If obj is null, there is no current reference

    //to FolderListenerApp. Start a new instance

    // of FolderListenerApp if one is not running.

    if (obj == null)

    {

      //Store a reference to this instance in the RuntimeStore.

      store.put(RTSID_MY_APP, new FolderListenerApp());



      return (FolderListenerApp)store.get(RTSID_MY_APP);

    } else

    {

      return (FolderListenerApp)obj;

    }

  }

regards,

yosoh

[jeyaprakash]

Thank u man got Fixed...